:root{
  --text:#1A1B1C; --sec:#6B7280; --bg:#F4F3EE; --card:#FFFFFF;
  --line:#E4E3DD; --accent:#2E7D9E; --accent-soft:#8BC8EA;
  --green:#2F7D3F; --green-bg:#E7F4E9; --radius:12px;
  --shadow:0 1px 3px rgba(0,0,0,.06);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;}
body{background:var(--bg);color:var(--text);
  font-family:'Roboto','PingFang SC','Segoe UI',Arial,sans-serif;
  font-size:15px;line-height:1.5;padding-bottom:env(safe-area-inset-bottom);}
button{font-family:inherit;cursor:pointer;border:none;border-radius:10px;font-size:15px;}
input{font-family:inherit;font-size:15px;padding:11px 13px;border:1px solid #d3d2cb;
  border-radius:10px;background:#fff;color:var(--text);width:100%;}
input:focus{outline:2px solid var(--accent-soft);border-color:var(--accent);}
.hide{display:none!important;}
h2{font-size:19px;margin:14px 0;}

/* 顶栏 */
.topbar{display:flex;align-items:center;gap:10px;background:var(--card);
  border-bottom:1px solid var(--line);padding:10px 14px;position:sticky;top:0;z-index:30;}
.shop-name{font-weight:700;font-size:16px;color:var(--accent);white-space:nowrap;
  max-width:46vw;overflow:hidden;text-overflow:ellipsis;}
.spacer{flex:1;}
.icon-btn{background:#f1f3f3;width:40px;height:40px;border-radius:10px;font-size:17px;position:relative;}
.cart-btn .badge{position:absolute;top:-6px;right:-6px;background:var(--accent);color:#fff;
  font-size:11px;min-width:19px;height:19px;border-radius:10px;display:flex;align-items:center;
  justify-content:center;padding:0 4px;font-weight:700;}

/* 公告 */
.announce{background:#FBF1DC;color:#8a5a17;padding:9px 14px;font-size:13px;}

/* 视图 */
main{max-width:1100px;margin:0 auto;width:100%;}
.view{padding:12px 14px 30px;}

/* 搜索 */
.search-wrap{margin-bottom:12px;}

/* 分类 */
.cat-bar{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;margin-bottom:6px;
  -ms-overflow-style:none;scrollbar-width:none;}
.cat-bar::-webkit-scrollbar{display:none;}
.chip{white-space:nowrap;background:#fff;border:1px solid var(--line);color:var(--sec);
  padding:8px 14px;border-radius:20px;font-size:13.5px;}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent);}

/* 商品网格 */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:11px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow);}
.pcard .pmedia{width:100%;aspect-ratio:1/1;background:#f1f0eb;border-radius:10px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;}
.pcard .pmedia img{width:100%;height:100%;object-fit:cover;display:block;}
.pcard .pmedia .ph{font-size:28px;color:#b8b6ad;font-weight:700;}
.pcard .pname{font-size:13.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;min-height:36px;}
.pcard .pcat{font-size:11px;color:var(--sec);}
.pcard .pbottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;gap:6px;}
.price{font-weight:700;font-size:16px;color:var(--accent);white-space:nowrap;}
.add-btn{background:var(--accent);color:#fff;padding:8px 12px;font-size:13px;font-weight:600;}

/* 分页 */
.pager{margin-top:16px;text-align:center;}
.load-more{background:#fff;border:1px solid var(--line);color:var(--accent);padding:11px 26px;font-weight:600;}
.no-products{color:var(--sec);padding:30px;}

/* 表单 */
.back-btn{background:none;color:var(--accent);padding:6px 0;font-size:14px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--sec);margin-bottom:6px;}
.seg{display:flex;gap:8px;}
.seg-btn{flex:1;background:#fff;border:1px solid var(--line);color:var(--sec);padding:12px 6px;font-weight:600;}
.seg-btn.active{background:var(--accent);color:#fff;border-color:var(--accent);}
.hint{font-size:12.5px;color:var(--sec);margin:8px 2px 0;}
.checkout-total{display:flex;justify-content:space-between;align-items:baseline;
  border-top:1px solid var(--line);padding-top:14px;margin:18px 0 12px;}
.checkout-total strong{font-size:24px;}
.primary{background:var(--accent);color:#fff;font-weight:600;padding:14px;}
.primary.big{width:100%;font-size:16px;}

/* 订单结果 */
.result-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin:14px 0;}
.ok-mark{width:58px;height:58px;border-radius:50%;background:var(--green-bg);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:30px;margin:0 auto 12px;}
.result-card h2{text-align:center;margin-top:0;}
.result-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #f0eee8;font-size:14px;}
.result-items{margin-top:10px;}
.ri-line{display:flex;justify-content:space-between;font-size:13px;color:var(--sec);padding:4px 0;}

/* 抽屉 */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:60;display:flex;
  align-items:flex-end;justify-content:center;}
.sheet{background:#fff;width:100%;max-width:560px;border-radius:18px 18px 0 0;
  max-height:86vh;display:flex;flex-direction:column;}
.modal-sheet{padding:16px;max-height:80vh;overflow-y:auto;}
.sheet-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;
  border-bottom:1px solid var(--line);}
.sheet-list{flex:1;overflow-y:auto;padding:8px 18px;}
.sheet-foot{padding:14px 18px;border-top:1px solid var(--line);}
.sheet-total{display:flex;justify-content:space-between;margin-bottom:12px;}
.sheet-total strong{font-size:22px;}
.cart-line{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid #f0eee8;}
.cart-line .ci-info{flex:1;min-width:0;}
.cart-line .ci-name{font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.qty-ctl{display:flex;align-items:center;gap:8px;}
.qty-ctl button{width:30px;height:30px;background:#eef0f0;font-size:16px;}
.qty-ctl span{min-width:26px;text-align:center;font-size:14px;}
.ci-amt{font-weight:600;font-size:14px;min-width:78px;text-align:right;}
.ci-del{background:none;color:#c0392b;font-size:16px;padding:2px 6px;}
.empty-note{color:var(--sec);text-align:center;padding:40px 10px;}
.lookup-result{margin-top:14px;}

/* toast */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#1A1B1C;color:#fff;
  padding:12px 20px;border-radius:24px;font-size:14px;z-index:99;opacity:0;transition:opacity .2s;
  pointer-events:none;max-width:88vw;text-align:center;}
.toast.show{opacity:.96;}

/* 优惠券 */
.coupon-row{display:flex;gap:8px;}
.coupon-btn{background:var(--accent);color:#fff;font-weight:600;padding:0 18px;white-space:nowrap;}
.coupon-msg{font-size:12.5px;margin:7px 2px 0;}
.coupon-msg.ok{color:var(--green);}
.coupon-msg.err{color:#c0392b;}

/* 金额明细 */
.summary-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:12px 14px;margin:6px 0 14px;}
.sum-line{display:flex;justify-content:space-between;align-items:baseline;padding:5px 0;font-size:14px;color:var(--sec);}
.sum-line span:last-child{color:var(--text);}
.sum-grand{border-top:1px solid var(--line);margin-top:6px;padding-top:10px;}
.sum-grand span{color:var(--text);font-weight:600;}
.sum-grand strong{font-size:22px;color:var(--accent);}

/* 桌面适配 */
@media (min-width:640px){ .grid{grid-template-columns:repeat(3,1fr);} }
@media (min-width:920px){ .grid{grid-template-columns:repeat(4,1fr);} .overlay{align-items:center;} .sheet{border-radius:16px;} }